text: //
  //  GTMNSDictionary+URLArguments.h
  //
  //  Copyright 2006-2008 Google Inc.
  //
  //  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  //  use this file except in compliance with the License.  You may obtain a copy
  //  of the License at
  // 
  //  http://www.apache.org/licenses/LICENSE-2.0
  // 
  //  Unless required by applicable law or agreed to in writing, software
  //  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  //  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
  //  License for the specific language governing permissions and limitations under
  //  the License.
  //
  
  #import <Foundation/Foundation.h>
  
  /// Utility for building a URL or POST argument string.
  @interface NSDictionary (GTMNSDictionaryURLArgumentsAdditions)
  
  /// Returns a dictionary of the decoded key-value pairs in a http arguments
  /// string of the form key1=value1&key2=value2&...&keyN=valueN.
  /// Keys and values will be unescaped automatically.
  /// Only the first value for a repeated key is returned.
  + (NSDictionary *)gtm_dictionaryWithHttpArgumentsString:(NSString *)argString;
  
  /// Gets a string representation of the dictionary in the form
  /// key1=value1&key2=value2&...&keyN=valueN, suitable for use as either
  /// URL arguments (after a '?') or POST body. Keys and values will be escaped
  /// automatically, so should be unescaped in the dictionary.
  - (NSString *)gtm_httpArgumentsString;
  
  @end
  